Smoke detectors


Where there’s smoke

This online resource simulates a smoke detector.

The resource is a Scootle resource that allows students to examine, on both a macro and molecular scale, the effects of adding and removing the radioactive element of a smoke detector, as well as the impact smoke has on the detector's operation.

The initial task asks students to write a short description of how the smoke detector works. The challenge section (at the bottom of the page) asks more detailed questions and would make a good homework or holiday assignment.

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